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If t^-2-4t^-1-12=0
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18 Sep 2020, 10:04
18 Sep 2020, 10:04
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Question Stats:
66% (01:31) correct
33% (01:56) wrong based on 56 sessions
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If \(t^{-2}-4t^{-1}-12=0\), which of the following could be the value of t?
Indicate all such values.
A. −6
B. −2
C. − 1/2
D. − 1/6
E. 1/6
F. 1/2
G. 2
H. 6
320 GRE Math Problems
Indicate all such values.
A. −6
B. −2
C. − 1/2
D. − 1/6
E. 1/6
F. 1/2
G. 2
H. 6
320 GRE Math Problems
Re: If t^-2-4t^-1-12=0
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18 Sep 2020, 10:06
18 Sep 2020, 10:06
Expert Reply
Post A Detailed Correct Solution For The Above Questions And Get A Kudos.
Question From Our New Project: GRE Quant Challenge Questions Daily - NEW EDITION!
For more theory and practice see our GRE - Math Book
Question From Our New Project: GRE Quant Challenge Questions Daily - NEW EDITION!
For more theory and practice see our GRE - Math Book
Re: If t^-2-4t^-1-12=0
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18 Sep 2020, 20:06
18 Sep 2020, 20:06
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by factorizing the given expression
\((t^-1 -6)(t^-1 +2)=0\)
so
\(t^-1 =6\) and \(t^-1 =-2\)
t=(1/6) and t=(-1/2)
options C and E are correct
\((t^-1 -6)(t^-1 +2)=0\)
so
\(t^-1 =6\) and \(t^-1 =-2\)
t=(1/6) and t=(-1/2)
options C and E are correct
